Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 43, Problem 3RQ
What large line connects the indoor unit to the outdoorunit?
A. A discharge line
B. A liquid line
C. An equalizer line
D. A gas line
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The different descriptions for fluid power conductors (lines). The ___________ lines are connected to the output device
a. suction
b. return/exhaust
c. actuator
d. supply
8. What would be done to increase the compressor speed
on a belt-driven compressor?
A. Decrease drive pulley size
B. Increase drive pulley size
C. Increase driven pulley size
13. What lubricates the refrigeration compressor?
A. Refrigerant
B. Moisture
C. Desiccants
D. Oil
D. Both A andC
9. Describe the reciprocating compressor piston, rod,
crankshaft, valves, valve plate, head, shaft seal, internal
motor overload device, pilot-duty motor overload de-
vice, and coupling.
10. Name two things in the design of a reciprocating com-
pressor that control the efficiency of the compressor.
А.
14. What can the service technician do to keep the refrig-
eration system operating at peak efficiency?
15. List the main advantage that a discus compressor's
valve plate design has over a conventional piston-type
В.
11. At what speeds in rpm does a hermetic compressor nor-
mally turn?
A. 1750
В. 3450
C. 4500
D. Both A and B
12. What effect does a slight amount of liquid refrigerant
have on a compressor…
3. Draw a neat diagram and explain in detail about any one type of rotary compressor.
Chapter 43 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 43 - How does a heart pump resemble a refrigeration...Ch. 43 - Name the three common sources of heat for heat...Ch. 43 - What large line connects the indoor unit to the...Ch. 43 - Why is the indoor unit not called an evaporator?Ch. 43 - When is the outdoor unit called an evaporator? A....Ch. 43 - The indoor coil is called a condenser during...Ch. 43 - Why is it important to have drainage for the...Ch. 43 - Which metering device is most efficient in heat...Ch. 43 - Where is the only permanent suction line on a heat...Ch. 43 - What type of drier may be used in the liquid line...
Ch. 43 - Where must a suction-line drier be placed in a...Ch. 43 - What controls the heat pump to determine whether...Ch. 43 - Can a heat pump switch from heating to cooling and...Ch. 43 - What must be done when frost and ice build up on...Ch. 43 - True or False: All heat pumps are practical...Ch. 43 - Why are scroll compressors more efficient than...Ch. 43 - Describe why variable-speed compressor motors are...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Blocked suction cylinder unloading is accomplished by A. keeping the suction valve closed. B. closing the discharge. C. closing the suction service valve. D. using a device in the low-pressure side of the system to close it off.arrow_forwardWhat is the advantage of using an injector-type mixing chamber?arrow_forwardThe line that carries refrigerant into the metering device is the A. suction line. B. discharge line. C. liquid line.arrow_forward
- Vacuum is defined as the absence ofarrow_forwardWhat would be done to increase the compressor speedon a belt-driven compressor?A. Decrease drive pulley sizeB. Increase drive pulley sizeC. Increase driven pulley sizeD. Both A and Carrow_forwardTechnician A says that suction lines become verywarm during A/C operation. Technician B says that discharge lines connect the compressor tothe condenser. Who is correct?arrow_forward
- Define the term in theory of macines Meyer's expansion valve.arrow_forwardIn perfect gas law demonstration experiment, the vacuum cylinder must be connected to: Select one: a. Pump inlet b. Pump discharge c. None of these d. Heat transfer service unitarrow_forwardAir service unit and air cooler is not available in closed type of fluid power system. Select one: True Falsearrow_forward
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